Hi, I currently have a set of DiMarzio Ultrajazz on my 5 string Moon Bass.The preamp I'm using is a Aguilar OBP 3. I have a set of used Basslines pickups for a 5string.They are the humcancelling passive ones. The sound I'm shooting for is the Marcus Miller sound and compared to my 74 Jazz with singlecoils and a Sadowsky preamp the Moon is a bit thick sounding in the lower midrange. I know I probably won't be able to really replicate the 74 sound with my Moon but would the Basslines be considered an upgrade to the Ultras? Has anyone here tried both?